Elevator with falling buffering function

Abstract

The invention relates to the field of elevators, in particular to an elevator with a falling buffering function, which comprises an exoskeleton frame, an electric cabin door, pulleys and the like, an electric cabin door is mounted on the exoskeleton frame, and an acceleration sensor is arranged on the exoskeleton frame; the exoskeleton frame is provided with two pulleys. The high-strength exoskeleton frame is arranged and used for protecting the lift car from deformation when emergency falling happens, safety of passengers in the lift car is protected, the electromagnet and the annular permanent magnet are arranged between the lift car and the exoskeleton frame, falling of an elevator is buffered through the electromagnetic damping effect, and the safety of the elevator is improved. The situation that after the exoskeleton frame makes contact with the hydraulic buffering device, the exoskeleton frame rebounds, and consequently the lift car bounces up and down is reduced, stable stopping of the lift car is achieved, and the situation that the lift car bounces rapidly, and secondary damage is caused to passengers in the lift car is avoided.

Description

Technical Field

[0001] The invention relates to the field of elevators, and in particular to an elevator with fall buffering. Background Art

[0002] An elevator is a fixed lifting device used to reach specified floors. In the prior art, elevators generally have four safety protection devices to protect the personal safety of passengers.

[0003] In the actual use of elevators, elevators still fall from time to time relying solely on the four-fold safety protection device. When summarizing the accidents, the cause of the accidents is attributed to the fact that the daily maintenance of the safety protection device is not in place, leading to the occurrence of accidents. This also reminds us that relying solely on the four-fold safety protection device cannot fully guarantee the personal safety of passengers. Therefore, through a number of tests, people have concluded that when the effect of the four-fold safety protection device is partially or completely lost, when the elevator falls, the passengers fall freely with the elevator. After the free fall ends, the passengers suffer initial injuries. After the elevator touches the bottom, the elevator will rebound due to the lack of additional fall buffer structure, which is likely to cause secondary injuries to the passengers in the elevator, seriously affecting the personal safety of the passengers in the elevator. Summary of the invention

[0004] In order to overcome the disadvantage that the elevator will rebound after falling due to lack of additional fall buffering structure, which may easily cause secondary injuries to passengers in the elevator and seriously affect the personal safety of passengers in the elevator, the present invention provides a lifting elevator with fall buffering.

[0005] The technical scheme of the present invention is: a lift elevator with fall buffer, comprising an exoskeleton frame, an electric door and a pulley; the exoskeleton frame is equipped with an electric door, and an acceleration sensor is arranged on the exoskeleton frame; the exoskeleton frame is equipped with two pulleys; it also comprises an elastic member I, a car, an electromagnet and an annular permanent magnet; the exoskeleton frame is equipped with a plurality of elastic members I; all the elastic members I are fixedly connected to the car; a plurality of electromagnets are installed in the exoskeleton frame; a plurality of annular permanent magnets are fixedly connected to the car; each electromagnet is matched with a corresponding annular permanent magnet The invention relates to a car body comprising a fixing plate I, an airbag and a fixing plate II; two fixing plates I are fixedly connected to the left and right parts of the exoskeleton frame; another fixing plate I is fixedly connected to the rear part of the exoskeleton frame; each fixing plate I is fixedly connected to an airbag; each upper part of the airbag is fixedly connected to a fixing plate II; all the fixing plates II are fixedly connected to the car; the triggering points of the upper and lower adjacent airbags are electrically connected through wires; the exoskeleton frame is connected to a mechanical triggering structure; the mechanical triggering structure is connected to the car; the mechanical triggering structure cooperates with the corresponding airbag; the mechanical triggering structure is used to trigger the inflation of the airbag.

[0006] Furthermore, it also includes a top plate; the top plate is detachably installed on the top of the car.

[0007] Furthermore, it also includes an emergency light; an emergency light is installed in the car.

[0008] Furthermore, it also includes an energy absorbing pad; the energy absorbing pad is fixedly connected to the bottom of the exoskeleton frame.

[0009] Furthermore, the energy absorbing pad is made of polyurethane material.

[0010] Furthermore, it also includes an air filter box and a fan; the air filter box is fixedly connected to the top plate; the fan is installed in the air filter box; the top plate is provided with a plurality of air inlet holes; and the air filter box is provided with a plurality of exhaust holes.

[0011] Furthermore, the exhaust hole of the air filter box is opened on the side.

[0012] Furthermore, the surface of each airbag is coated with a wear-resistant coating.

[0013] Furthermore, a solenoid valve and an air pump are arranged in the airbag.

[0014] Compared with the prior art, the present invention has the following advantages: 1. A high-strength exoskeleton frame is provided to protect the car from deformation in the event of an emergency fall, thereby protecting the safety of the passengers in the car. An electromagnet and an annular permanent magnet are provided between the car and the exoskeleton frame. The electromagnetic damping effect is used to buffer the fall of the elevator, thereby reducing the rebound of the exoskeleton frame after the exoskeleton frame contacts the hydraulic buffer device, thereby reducing the situation where the car bounces up and down, thereby achieving a smooth stop of the car and avoiding the car from bouncing quickly and causing secondary injuries to the passengers in the car.

[0015] 2. The expansion of the airbag is triggered by the acceleration sensor. After the airbag expands, it fills the side gap between the car and the exoskeleton frame, effectively preventing the exoskeleton frame and the side walls of the car from being concave and deformed when the elevator falls, affecting the safety of the passengers in the car. In addition, the maintenance personnel can freely control the expansion of the airbag to lift the car upwards. The electromagnet, annular permanent magnet and elastic part I hinder the movement of the car, thereby simulating an emergency fall of the elevator. Whether the combination of the electromagnet and the annular permanent magnet and the cooperation of the elastic part I can ensure the fall buffer of the car.

[0016] 3. By setting up elastic part II and safety cylinder, it is effectively prevented that passengers jump in the elevator car during normal use, causing the airbag to be accidentally triggered. If the elevator falls suddenly, the airbag will lose its emergency protection function for the car and cannot protect the personal safety of the passengers in the car. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1It is a schematic diagram of the three-dimensional structure of the lift with fall buffer of the present invention; Figure 2 A schematic diagram of the internal structure of the exoskeleton frame of the present invention from a first perspective; Figure 3 A schematic diagram of the internal structure of the exoskeleton frame of the present invention from a second viewing angle; Figure 4 This is a schematic diagram of the fan installation position of the present invention; Figure 5 It is a schematic diagram of the installation position of the elastic member II of the present invention; Figure 6 It is a schematic diagram of the installation position of the elastic member II of the present invention; Figure 7 It is a schematic diagram of the cooperation between the ejector rod and the safety cylinder of the present invention.

[0018] The markings of the components in the accompanying drawings are as follows: 1-exoskeleton frame, 2-electric hatch, 3-pulley, 4-elastic part I, 5-car, 6-electromagnet, 7-annular permanent magnet, 8-top plate, 9-emergency light, 10-energy absorption pad, 11-air filter box, 12-fan, 13-fixed plate I, 14-airbag, 15-fixed plate II, 101-movable plate, 102-slider, 103-top rod, 104-limiting strip, 105-elastic part II, 106-safety cylinder. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0020] Embodiment 1 A lifting elevator with fall buffer, according to Figure 1-Figure 5 As shown, it includes an exoskeleton frame 1, an electric door 2 and a pulley 3; two electric doors 2 are installed at the front of the exoskeleton frame 1, and an acceleration sensor is provided on the exoskeleton frame 1; two symmetrically distributed pulleys 3 are installed on the upper part of the exoskeleton frame 1; It also includes an elastic member Ⅰ4, a car 5, an electromagnet 6 and an annular permanent magnet 7; four elastic members Ⅰ4 are respectively installed on the upper and lower parts of the exoskeleton frame 1, and the elastic member Ⅰ4 is a spring telescopic rod; all the elastic members Ⅰ4 are fixedly connected to the car 5; the car 5 is located in the exoskeleton frame 1; two electromagnets 6 are respectively installed on the left and right parts of the exoskeleton frame 1, which are symmetrical in front and back; six annular permanent magnets 7 are respectively fixedly connected to the left and right parts of the car 5; each electromagnet 6 passes through three annular permanent magnets 7; it also includes a fixing plate Ⅰ13, an air bag 14 and a fixing plate Ⅱ15; the exoskeleton frame The left and right parts of the exoskeleton frame 1 are each fixedly connected with two fixing plates Ⅰ13 distributed up and down; another fixing plate Ⅰ13 is fixedly connected to the rear of the exoskeleton frame 1; each fixing plate Ⅰ13 is fixedly connected with an airbag 14; each airbag 14 is fixedly connected with a fixing plate Ⅱ15 on its upper part; all fixing plates Ⅱ15 are fixedly connected to the car 5; the triggering points of the upper and lower adjacent airbags 14 are electrically connected through wires; the exoskeleton frame 1 is connected with a mechanical triggering structure; the mechanical triggering structure is connected to the car 5; the mechanical triggering structure cooperates with the corresponding airbag 14; the mechanical triggering structure is used to trigger the expansion of the airbag 14.

[0021] It also includes a top plate 8; the top plate 8 is detachably mounted on the top of the car 5.

[0022] An emergency light 9 is also included; the emergency light 9 is installed in the car 5.

[0023] It also includes an energy absorbing pad 10 ; the energy absorbing pad 10 is fixedly connected to the bottom of the exoskeleton frame 1 .

[0024] The energy absorbing pad 10 is made of polyurethane material and is used to cushion the impact of falling.

[0025] It also includes an air filter box 11 and a fan 12; the air filter box 11 is fixedly connected to the lower part of the top plate 8; the fan 12 is installed in the air filter box 11; the top plate 8 is provided with a plurality of air inlet holes; and the air filter box 11 is provided with a plurality of exhaust holes.

[0026] The exhaust holes of the air filter box 11 are opened on the side to discharge the air evenly into the car 5 to prevent the air from directly blowing on the passengers in the car 5.

[0027] The surface of each airbag 14 is coated with a wear-resistant coating.

[0028] An electromagnetic valve and an air pump are provided inside the airbag 14 for freely controlling the rapid contraction and expansion of the airbag 14 .

[0029] The working steps of the above embodiment are: Before using this elevator, first pass the corresponding four traction ropes through the two pulleys 3, and connect the traction ropes to the elevator counterweight, and then use the motor to drive the traction rope to realize the lifting and lowering of this elevator. Generally, elevators have four levels of safety protection. The first level is that there are four traction ropes connecting the elevator. Each traction rope can withstand the maximum load of the elevator. Even if the three traction ropes are broken, the elevator can still operate safely. The second level is that the brake shoe controls whether the hub on the output shaft of the drive motor rotates or not, which can prevent the elevator from suddenly losing power during operation, causing the elevator to suddenly fall. The third level is the overspeed braking system. When the elevator suddenly falls, the guide rails are locked by the brake to prevent the elevator from continuing to fall. The fourth level is the hydraulic buffer device, which is set at the bottom of the elevator shaft. It is the last safety device to prevent accidents. Only when these four levels of protection fail will the elevator free fall accident occur.

[0030] Among them, the hydraulic buffer device in the prior art, when the elevator falls and contacts the hydraulic buffer device, since the hydraulic buffer device is an energy-absorbing buffer, when the hydraulic rod is compressed to the limit, the energy of the elevator fall is not completely absorbed, and the elevator will bounce up and down, causing secondary injuries to the passengers in the elevator. On the basis of the above-mentioned prior art, some of the anti-accidental safety devices lose their functions. When the elevator falls, the acceleration sensor on the exoskeleton frame 1 triggers the four electromagnets 6 to be energized. When the exoskeleton frame 1 contacts the hydraulic buffer device, the car 5 is suspended in the exoskeleton frame 1 due to the elastic parts Ⅰ4 above and below. Therefore, after the exoskeleton frame 1 contacts the hydraulic buffer device, the car 5 will continue to move downward under the action of inertia, and the elastic part Ⅰ4 above is stretched and the elastic part Ⅰ4 below is compressed. Therefore, through the cooperation of the elastic part Ⅰ4, the contact of the exoskeleton frame 1 with the hydraulic buffer is slowed down. After the device is installed, the car 5 is impacted, thereby protecting the passengers in the car 5. After the four electromagnets 6 are energized, the magnetic field generated by the electromagnets 6 after being energized is opposite to the magnetic field of the annular permanent magnet 7. Therefore, through the electromagnetic damping effect, the impact energy of the falling car 5 is further absorbed. The faster the falling speed, the greater the falling impact energy, and the stronger the electromagnetic damping effect. Therefore, the falling buffering effect of the car 5 is better. Finally, the car 5 stops smoothly, avoiding the passengers in the car 5 from being injured under the action of inertia when the car 5 stops suddenly. If the exoskeleton frame 1 bounces after contacting the hydraulic buffer device, the car 5 can also absorb part of the bouncing energy of the exoskeleton frame 1 through the elastic member Ⅰ4, and the car 5 can also offset the energy of the upward movement of the car 5 through the electromagnetic damping effect, thereby achieving a smooth stop of the car 5, avoiding the car 5 bouncing and causing secondary injury to the passengers in the car 5.

[0031] What needs to be considered is that when the elevator falls in an emergency, an exoskeleton frame 1 is arranged outside the car 5, and the electric door 2 is automatically locked, so that the high-strength exoskeleton frame 1 and the electric door 2 replace the car 5 to withstand the impact of the fall, protect the integrity of the car 5, and better protect the passengers in the car 5. After the elevator falls in an emergency, the passengers in the car 5 will be frightened. The frightened passengers are in a physiological reaction and are very sensitive to the surrounding environment. At this time, the acceleration sensor on the exoskeleton frame 1 detects that the exoskeleton frame 1 has stopped, and controls the emergency light 9 to turn on. The warm-colored emergency light 9 helps to relieve the mental stress of the passengers in the car 5, so that the passengers in the car 5 wait quietly for rescue, and controls the start of the fan 12, so that the outside air enters the air filter box 11 through the air inlet on the top plate 8, and then from the air filter box 1 The exhaust holes on the side of the air filter box 11 are discharged into the car 5, so that the air in the car 5 can circulate, and fresh air is kept in the car 5 at all times, which further relieves the psychological pressure of the passengers in the car 5 and facilitates the subsequent rescue mission. The exhaust holes of the air filter box 11 are set on the side, which effectively avoids the air from being blown directly to the frightened and sensitive passengers in the car 5, effectively avoiding the stress reaction of the passengers, and the mental tension again, which affects the subsequent rescue. After the elevator falls, the central control system of the elevator automatically dials a rescue call. When the rescuers arrive, the passengers in the car 5 need to cooperate with the rescuers to implement the rescue mission. At this time, the passengers in the car 5 need to cooperate with the rescuers to push the air filter box 11 and the top plate 8 upwards, and the passengers can climb out from the top of the car 5 with the help of the rescuers, and then the rescuers only need to rescue the passengers from the upper part of the car 5.

[0032] It is also necessary to consider that the car 5 is suspended in the exoskeleton frame 1 through the upper and lower elastic members Ⅰ4, and after the elevator falls in an emergency, there are gaps between the left, right and rear parts of the car 5 and the exoskeleton frame 1. When the car 5 falls at a high speed, the impact energy generated by the high-speed fall can easily cause the high-strength exoskeleton frame 1 and the side walls of the car 5 to deform inward, affecting the safety of the passengers in the car 5. At this time, an airbag 14 is arranged in the side gap between the car 5 and the exoskeleton frame 1. When the elevator falls, the exoskeleton frame 1 contacts the hydraulic buffer device, and the acceleration sensor on the exoskeleton frame 1 controls and triggers the airbag 14, causing the airbag 14 to expand rapidly. The airbag 14 lifts the car 5 upward through the fixing plate II 15 to absorb part of the energy of the falling car 5 and to keep the car 5 away from the bottom of the exoskeleton frame 1, thereby reducing the impact on the bottom of the car 5 and ensuring the personal safety of the passengers in the car 5. The inflated airbag 14 absorbs the energy transmitted after the deformation of the exoskeleton frame 1 and protects the integrity of the car 5, thereby fully protecting the personal safety of the passengers in the car 5. After the airbag 14 is inflated, it is tightly attached to the exoskeleton frame 1 and the car 5, increasing the friction between the car 5 and the airbag 14, and further cooperates with the electromagnet 6 and the annular permanent magnet 7 to cushion the car 5, thereby preventing the car 5 from jumping up and down and reducing the harm to the passengers in the car 5.

[0033] Elevators are a frequently used means of transportation for people, so they need to be regularly maintained. In addition to the inspection and maintenance of the four-fold protective device of the elevator, the combination of the electromagnet 6 and the annular permanent magnet 7 also needs to be inspected and maintained. At this time, the maintenance personnel manually control the air pump and the solenoid valve in the airbag 14 to expand the airbag 14 to the front and rear sides and the upper part, so that the airbag 14 pushes the fixed plate II 15 upward to drive the car 5 to move upward. At the same time, the maintenance personnel also energize the electromagnet 6, and the electromagnet 6 and the annular permanent magnet 7 cooperate to produce a damping effect. If the upward movement of the car 5 is hindered, it means that the combination of the electromagnet 6 and the annular permanent magnet 7 and the elastic member I 4 is fully functional, which means that after the airbag 14 is triggered, the car 5 moves smoothly. If the car 5 moves upward rapidly after the airbag 14 expands, it means that the combination of the electromagnet 6 and the annular permanent magnet 7 and the elastic member Ⅰ4 are defective, which means that the car 5 will jump violently in the exoskeleton frame 1 and there is a safety hazard in the car 5. The above test is used to simulate the emergency fall of the elevator to see whether the combination of the electromagnet 6 and the annular permanent magnet 7 and the elastic member Ⅰ4 can ensure the fall buffer of the car 5 and reduce the harm to the passengers in the car 5. After the test is completed, the operator controls the airbag 14 to shrink and reset the car 5 synchronously.

[0034] In the above process, when the elevator falls, the triggering of the airbag 14 relies on the acceleration sensor. During the inspection and maintenance work, the operator also triggers and controls the expansion and contraction of the airbag 14 through electrical signals. In actual situations, a mechanical triggering structure can be set between the exoskeleton frame 1 and the car 5 to ensure that the airbag 14 can still be inflated by mechanical triggering after the acceleration sensor fails, thereby further ensuring the personal safety of the passengers in the car 5.

[0035] Second embodiment On the basis of the first embodiment, according to Figure 3 , Figure 6 and Figure 7 As shown, the mechanical trigger structure includes a movable plate 101, a slider 102, a push rod 103 and a limit bar 104; three movable plates 101 are hinged at the bottom of the car 5; each movable plate 101 is hinged with a slider 102; all the sliders 102 are slidably connected to the bottom of the exoskeleton frame 1; each slider 102 is fixedly connected to four equidistantly distributed push rods 103; three limit bars 104 are fixedly connected to the bottom of the exoskeleton frame 1; each limit bar 104 is slidably connected to the corresponding four push rods 103; four trigger blocks are respectively arranged at the lower part of each airbag 14, and each trigger block corresponds to a push rod 103; the push rod 103 is used to trigger the airbag 14 and inflate it.

[0036] It also includes an elastic part II 105 and a safety tube 106; each push rod 103 is fixedly connected to an elastic part II 105, and the elastic part II 105 is a spring; each push rod 103 passes through an elastic part II 105; each elastic part II 105 is fixedly connected to a safety tube 106; the safety tube 106 is a hollow tube, and the inner diameter of the safety tube 106 is larger than the diameter of the trigger block; each push rod 103 is slidably connected to a safety tube 106.

[0037] The contact position between the safety cylinder 106 and the ejector rod 103 is coated with a wear-resistant coating to reduce the wear of the safety cylinder 106 and the ejector rod 103 .

[0038] The working steps of the above embodiment are: On the basis of the first embodiment, if the acceleration sensor fails, the elevator falls in this case, and the car 5 continues to move downward under the action of inertia. The car 5 drives the corresponding movable plate 101 to be pressed down, and the movable plate 101 drives the slider 102 to drive the push rod 103 to move. Under the restriction of the limit bar 104, the push rod 103 contacts the trigger block of the airbag 14, triggering and expanding the airbag 14, implementing buffer protection for the car 5, effectively compensating for the failure of the acceleration sensor, and being able to trigger the airbag 14, effectively protecting the personal safety of the passengers in the car 5.

[0039] Among them, on the basis of the above functions, in order to effectively trigger and expand the airbag 14 when the elevator falls, it is also necessary to consider that the mechanical trigger structure may be triggered by mistake when the elevator is in normal use, resulting in a failure of the elevator protection function. For example, when a child is riding an elevator, he runs and jumps in the elevator. At this time, the car 5 shakes up and down, and it is easy to accidentally touch the mechanical trigger structure when it moves downward. After the airbag 14 is triggered, the airbag 14 opens and fits tightly against the car 5 and the exoskeleton frame 1, making it difficult for the car 5 and the exoskeleton frame 1 to move relative to each other, and making the state of the car 5 suspended on the exoskeleton frame 1 invalid. If the elevator falls, the car 5 and the exoskeleton frame 1 are the same body, and the elastic member I4 cannot effectively cushion the car 5. The fall of the elevator will greatly threaten the personal safety of the passengers in the car 5. At this time, an elastic member II 105 and a safety cylinder 106 are added to the top rod 103. There are passengers jumping inside, causing the car 5 to move downward, which in turn causes the top rod 103 to move. At this time, the top rod 103 drives the elastic member II 105 and the safety cylinder 106 thereon to move together, and then the safety cylinder 106 will first contact the lower part of the airbag 14, and the inner diameter of the safety cylinder 106 is larger than the diameter of the trigger block at the lower part of the airbag 14. All the elastic members II 105 and all the elastic members I 4 below are compressed to absorb the instantaneous downward movement energy generated by the passengers jumping in the car 5. At this time, the airbag 14 will not be triggered to expand, ensuring the normal use of the elevator. On the contrary, when the elevator falls, the energy generated by the fall is much greater than the energy generated by the passengers jumping. Therefore, all the elastic members II 105 and all the elastic members I 4 below cannot stop the car 5 from continuing to move downward, causing the top rod 103 to continue to move in the direction close to the trigger block of the airbag 14 until it is triggered and the airbag 14 expands, protecting the safety of the passengers in the car 5.

[0040] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A lift with fall buffer, comprising an exoskeleton frame (1), an electric door (2) and a pulley (3); the exoskeleton frame (1) is equipped with the electric door (2), and an acceleration sensor is provided on the exoskeleton frame (1); the exoskeleton frame (1) is equipped with two pulleys (3); the characteristics are: The invention also comprises an elastic member I (4), a car (5), an electromagnet (6) and an annular permanent magnet (7); the exoskeleton frame (1) is equipped with a plurality of elastic members I (4); all the elastic members I (4) are fixedly connected to the car (5); a plurality of electromagnets (6) are installed in the exoskeleton frame (1); the car (5) is fixedly connected to a plurality of annular permanent magnets (7); each electromagnet (6) is matched with a corresponding annular permanent magnet (7); the invention also comprises a fixing plate I (13), an air bag (14) and a fixing plate II (15); the left and right parts of the exoskeleton frame (1) are each fixedly connected to two fixing plates I (13); another fixing plate I (13) is fixedly connected to the rear of the exoskeleton frame (1); each fixing plate I (13) is fixedly connected to an airbag (14); each airbag (14) is fixedly connected to a fixing plate II (15) on the upper part; all fixing plates II (15) are fixedly connected to the car (5); the triggering points of the upper and lower adjacent airbags (14) are electrically connected via wires; the exoskeleton frame (1) is connected to a mechanical triggering structure; the mechanical triggering structure is connected to the car (5); the mechanical triggering structure cooperates with the corresponding airbag (14); the mechanical triggering structure is used to trigger the airbag (14) to expand.

2. The lift with fall buffer according to claim 1, characterized in that: It also includes a top plate (8); the top plate (8) is detachably mounted on the top of the car (5).

3. The lift with fall buffer according to claim 2, characterized in that: It also includes an emergency light (9); the emergency light (9) is installed in the car (5).

4. The lift with fall buffer according to claim 3, characterized in that: It also includes an energy absorbing pad (10); the energy absorbing pad (10) is fixedly connected to the bottom of the exoskeleton frame (1).

5. The lift with fall buffer according to claim 4, characterized in that: The energy absorbing pad (10) is made of polyurethane material.

6. The lift with fall buffer according to claim 4, characterized in that: It also includes an air filter box (11) and a fan (12); the top plate (8) is fixedly connected to the air filter box (11); the fan (12) is installed in the air filter box (11); the top plate (8) is provided with a plurality of air inlet holes; and the air filter box (11) is provided with a plurality of air outlet holes.

7. The elevator with fall buffer according to claim 6, characterized in that: The exhaust hole of the air filter box (11) is opened on the side.

8. The elevator with fall buffer according to claim 7, characterized in that: The surface of each airbag (14) is coated with a wear-resistant coating.

9. The elevator with fall buffer according to claim 7, characterized in that: An electromagnetic valve and an air pump are arranged in the air bag (14).

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